<!DOCTYPE html>
Passes if there is an unbroken rectangular border.
<style>td { width: 20px; height: 20px; padding: 2px }</style>
<table style="position: absolute; top: 30.3px; border: 2px solid black;
              border-collapse: collapse; writing-mode: vertical-rl">
  <tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
  </tr>
</table>
